This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.
| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 1 |
| 2 | 1 |
| 3 | 2 |
| 4 | 4 |
| 5 | 7 |
| 6 | 14 |
| 7 | 31 |
| 8 | 66 |
| 9 | 142 |
| 10 | 316 |
| 11 | 708 |
| 12 | 1593 |
| 13 | 3625 |
| 14 | 8314 |
| 15 | 19165 |
| 16 | 44433 |
| 17 | 103557 |
| 18 | 242376 |
| 19 | 569514 |
| 20 | 1343099 |
| 21 | 3177766 |
| 22 | 7540845 |
| 23 | 17943506 |
| 24 | 42804078 |
| 25 | 102345017 |
| 26 | 245233366 |
| 27 | 588785677 |
| 28 | 1416247791 |
| 29 | 3412495415 |
| 30 | 8235829927 |
| 31 | 19906780104 |
| 32 | 48185131721 |
| 33 | 116790380824 |
| 34 | 283432579807 |